Sure I can chime in here.
You did actually read the post correct? Not just the title? The original poster, Jef, is talking about implementing a Unix socket or a dbus protocol similar to what apple already has. They are literally just referencing their definition for a struct.
So no this will not be ID verification, it won't ask for face scans, and it won't necessarily send the data anywhere.
The article is just using the big A word as some boogeyman to generate clicks and further rile up the community.
The systemd change is benign and this is not proof of your slippery slope theory.
Edit: I swear literacy rates in the linux community must be dropping.